Cover for butter-receptacles



(No Model.)

H. G. CARTER.

COVER FOR BUTTER REGEPTAGLBS, 8:0. No. 521,634. Patented June 19, 1894.

A7TOHNEYS.

HENRY O. CARTER, OF EAST ORANGE, NEW JERSEY.

COVER FOR BUTTER-RECEP-TACLES, 80C.

SPECIFIGATION forming part of Letters Patent No. 521,634, dated June 19,1894. Application filed March 8, 1394:- Serial No. 502,837. (No model.)

To aZZ whom it may concern.-

Be it known that I, HENRY O. CARTER, of East Orange, in the county ofEssex and State of New Jersey, have invented certain new and usefulImprovements in Covers for Beceptacles for Butter and other Articles, ofwhich the following is a full, clear, and exact description.

The invention relates to covers for butter tubs, 850., such as shown anddescribed in Letters Patent of the United States, No. 404,597, grantedto me June 4, 1889. In my said invention the movable central part of thecover or wedge-shaped looking tongue is made with straight sides, andthe recesses in the tub or receptacle that receive the ends ofsaidlooking tongue are also made with straight sides. I have found inpractice in consequence of said construction, the cover is notsufficiently locked down in its central part but is liable to rise orspring up in the center and thus to admit air, which deteriorates thegoods contained in the receptacle, or permits leakage of fluid contentsthereof.

The object'of my present invention is to overcome the said defects, andto provide a means for firmly locking down or securing the central partor looking tongue of the cover, so that the cover cannot rise or becomedisplaced in the center.

The invention consists in constructing .the central wedge-shaped lockingtongue of the cover with outwardly -inclined or beveled sides, and inconstructing the recesses in the receptacle which receive the saidlocking tongue with correspondingly inwardly -inclined or undercutsides, so that when the cover is properly placed upon the receptacle andthe said tongue driven home, it will firmly secure and hold down thecentral part of the cover, and prevent the cover from rising or leakingin the center, as will be hereinafter more fully described.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a perspective view of the improvement showing the cover in aclosed position on thetub. Fig.2isaperspective view of the cover withparts broken out; and Fig.

3 is a perspective view of the upper end of the tub.

The sectional cover referred to in the patent above mentioned is liableto rise in the center, as the ends of the wedge or middle section arenot directly locked in place on the tub itself and are free to rise attheir ends in the straight grooves or notches formed in the upper endsof the tub.

The tub A is provided at its upper end with an internal groove orshoulder A, (see Fig. 3,) to receive the edges of the cover sections B,B The wedge or middle section B of the cover, which in my said patent ismade with straight or vertical sides, is here made with beveled oroutwardly-inclined sides, and is slidably connected with thecorrespondingly beveled edged side sections B and B by a device 0, shownand described in detail in the patent above referred to, and alsoillustrated in Fig. 2, so that further description of the same is notdeemed necessary. The middle or wedge section B is adapted to engagedovetail grooves A and A formed in the upper end of the tub A directlyopposite each other, as shown'in Figs. 2 and 3, the smaller groove Abeing adapted to receive the smaller end of the wedge section B', whilethe larger groove A is adapted to receive the base end of the wedge.When the cover is in the position illustrated in Fig. 2, the wedgesection B being partly withdrawn, the cover can be readily placed inposition on the tub, the edges of the sections B, B fitting into thegroove A, and the projecting end of the wedgesection B readily passinginto the large dovetail groove A The operator now, in closing the tub,moves the wedge section B inwardly so as to force the side sections Band B apart and in firm contact at their beveled edges with the beveledinner surfaces of the upper part of the tub A and .into the groove A.

At the same time, the small end of the wedge section B passes into andengages the dovetail groove A while the base end snugly fits into thelarge dovetail groove A and the wedge section is thus prevented fromrisin The height of the dovetail grooves corresponds to the thickness ofthe cover B, and the bottoms of the grooves are flush with the top ofthe shoulder A, so that when the cover is locked in place on the upperend of the tub, then the entire top surface of the tub presents asmooth, even surface; see Fig. 1.

The wedge section B by being fitted into the dovetail grooves A A can bereadily withdrawn when opening the tub, as the said wedge section is notliable to bind between the said sections B and B It will further be seenthat the wedge section 13, when driven home in closing the cover ontothe upper end of the tub has the tendency to draw the cover downward, soas to tightly close the upper end of the tub.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. The combination with a receptacle havingits open end provided with a croze, and opposite dovetail grooves, whichare of different size and located above the croze, of a cover composedof side sections adapted to fit in said croze, and an intermediatewedgeshape section having beveled sides which fit in said grooves, andmeans for connecting the several sections, whereby the middle one isslidable between the others, yet remains engaged therewith, as shown anddescribed.

2. The combination, with a receptacle, having a croze, and its upperedge grooved or slotted transversely at diametrically opposite points,the sides of the grooves being undercut to form a dovetail, of thesectional cover whose middle or looking section has its end portionsbeveled to adapt them to fit in the dovetail grooves, and means forholding it in slidable engagement with the side sections, as shown anddescribed.

HENRY (J. CARTER.

lVitnesses:

O. SEDGVVICK, F. W. HANAFORD.

